Tellurium Dinitrate

Dimethyl tellurium dibromide, (CH3)2TeBr2, is formed when the preceding di-iodide is treated with hvdrobromic acid. Another method consists in dissolving the di-iodide in ammonium hydroxide, precipitating the iodine with ammoniacal silver nitrate, and treating the dimethyl tellurium dinitrate with hvdrobromic acid. The reaction is very complicated, but may be summarised as follows ... 

Di-o-tolyl tellurium dinitrate, (CH3.C6H4)2Te(N03)2,2 forms lancets or rods. 

Bis[trifluoromethyl] tellurium dinitrate was formed from bis[trifluoromethyl] tellurium and chlorine nitrate8 or in a less convenient way from bis[trifluoromethyl] tellurium difluoride and dinitrogen pentoxide9 at low temperatures. 

Boiling diaryl tellurium dinitrates in water is reported to give diaryl tellurium hydroxide nitrates4. 

Some diaryl tellurium dinitrates did not give diaryl tellurium hydroxide nitrates on treatment with water but deposited the corresponding anhydride2,3 ... 

Diorgano tellurium dinitrates were prepared by oxidation of diorgano telluriums with nitric acid, by treating diorgano tellurium diiodides with nitric acid and by reacting diorgano tellurium oxides with nitric acid " . 

Bis[trifluoromethyl] Tellurium Dinitrate A 10% solution of bis[trifluoromethyl] tellurium in fluorotrichlo-romethane is cooled to — 100° under nitrogen. A solution of chlorine nitrate (5-fold molar excess) in fluorotrichloromethane is slowly added dropwise to the solution of the tellurium compound. The mixture is allowed to slowly warm to — 78° and the solvent is evaporated at this temperature. The white, moisture-sensitive product decomposes with evolution of nitrogen oxides above — 20° m.p. — 22° (in a sealed tube). 

The diorgano tellurium dinitrates are reduced to diorgano telluriums by sulfites and are converted to diorgano tellurium dihalides by hydrohalic acid ". Water hydrolyzes the dinitrates to diorgano tellurium hydroxide nitrates. Dimethyl tellurium dinitrate explodes on rapid heating. ... 

Since the radicals Cl, Br or CH3.C0.0 show little tendency to ionise when united to tellurium, they cannot be represented by Ax and A2. It should be noted that each of the mobile acid radicals possesses doubly bonded oxygen, and the nitrate ion appears to be mobile even in reaction between dry solids (phenoxtellurine and its anhydrous dinitrate). 

Diorgano tellurium oxides react with nitric and perchloric acid producing diorgano tellurium hydroxide perchlorates diperchlorates hydroxide nitrates or dinitrates". ... 

The body shows decomposition if heated above 270° C. and burns in air with a reddish flame and the separation of lead oxide. It is moderately soluble in chloroform, benzene, or carbon bisulphide when hot, and difficultly soluble in alcohol, ether, ligroin, or acetic acid. If heated in a sealed tube with hydrochloric acid decomposition occurs, lead tetrachloride and benzene being produced. By the action of halogens or concentrated nitric acid two phenyl groups are split off, and a lead diphenyl dihalide or dinitrate formed. A similar action takes place with iodic acid, formic, acetic, trichloracetic, propionic, valeric, and p-nitrobenzoic acids. With metallic chlorides the following derivatives are formed arsenic trichloride — lead diphenyl dichloride and diphenyl arsenious chloride antimony trichloride — lead diphenyl dichloride and diphenylstibine chloride antimony penta-chloride — lead diphenyl dichloride and diphenylstibine trichloride bismuth tribromide —> lead diphenyl dichloride and diphenylchloro-bismuthine thallie chloride —> lead diphenyl dichloride and thallium diphenyl chloride tellurium tetrachloride —> lead diphenyl dichloride and tellurium diphenyl dichloride. 

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